Biogeochemical Cycling
Matter is conserved
Energy flows, but matter is recycled
Importance of biogeochemical cycling
Transfer, transformation and storage
Biogeochemical cycles: Global
Nutrient cycles: Ecosystem
- Entry of nutrients into system
- fixation (bacteria)
- weathering (rocks)
- deposition (acid rain)
- Internal transfer (recycling)
- food webs
- decomposition
- Loss of nutrients from system
Carbon cycle: Ecosystems
Carbon cycle: Global
Nitrogen cycle: Ecosystems
Nitrogen cycle: Ecosystems
Decomposition
Decomposition rate: Biomes
Nutrient transfer: Soils
Nitrogen cycle: Global
Primary productivity
Global net primary production
Global net primary production
